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Finding the Fourth Proportional to 66,901.82, 100,352.66 and 16,982.12

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Solution

The fourth proportional to 66,901.82, 100,352.66 and 16,982.12 is: 25,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,901.82 : 100,352.66 = 16,982.12 : x
  2. Step 2: Convert to fraction form
    66,901.82/100,352.66 = 16,982.12/x
  3. Step 3: Cross multiply
    66,901.82x = 100,352.66 × 16,982.12
  4. Step 4: Simplify right side
    66,901.82x = 1,704,201,080.41
  5. Step 5: Solve for x
    x = 1,704,201,080.41/66,901.82
  6. Step 6: Final answer
    x = 25,473.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.